# STM351-2 RF Power Module

## Description
️· Linear RF Power Amplifier for WLL or fixed radio access applications.
️· Frequency Range: 325-351 MHz.
️· Bandwidth: 25 MHz.
️· Available in a range of frequencies from 300-500 MHz (see below).

## Electrical Specifications
️· Power Gain: 21-25 dB (POUT = 1.0 W).
️· Efficiency: 11-12.5% (POUT = 1.0 W).
️· Input VSWR: ≤ 1.5:1.
️· Quiescent Current (ICC(q)): 110-130 mA.
️· Collector Supply Current (ICC): 375-425 mA (POUT = 1.0 W).
️· Harmonics (H): ≤ -30 dBc (F = 325 MHz).
️· Intermodulation Distortion (IMD): ≤ -40 dBc.
️· Load Mismatch: No degradation with infinite VSWR, stable at 5:1 VSWR.

## Absolute Maximum Ratings
️· DC Supply Voltage (VCC): +21 Vdc.
️· Quiescent Current (ICC(q)): 200 mAdc.
️· Operating Current (ICC): 500 mAdc.
️· RF Input Power (P IN): 30 mW.
️· RF Output Power (POUT): 2.0 W AVG.
️· Storage Temperature (TSTG): -30 to +100 °C.
️· Operating Case Temperature (TC): −20 to +60 °C.

## Pin Connections
1. RF Input
2. N/C
3. GND
4. N/C
5. IBB
6. GND
7. VCC (+20VDC)
8. RF Output

## Available Frequency Bands
️· STM326-2: 300-326 MHz
️· STM351-2: 325-351 MHz
️· STM376-2: 350-376 MHz
️· STM401-2: 375-401 MHz
️· STM426-2: 400-426 MHz
️· STM451-2: 425-451 MHz
️· STM476-2: 450-476 MHz
️· STM500-2: 475-500 MHz